ACS Base Modelsbeta
Private beta — access is gated. Email base-models@acsresearch.org with a brief note on how you'd like to use it; we review requests individually. If it's a fit, you'll get an invite link to create an API key from the dashboard.

Account

Where to find your keys, your spend, and your monthly budget.

API keys

You create keys from the Dashboard once your account is approved. Each key is shown once at creation time — copy it then; we only ever store a hash. If you lose it, revoke the key and create a new one.

Keys can be paused (reversibly disabled) or revoked (permanent). Paused keys come back with one click; revoked keys are gone.

Budgets

  • Per-key monthly budget — a token cap (prompt + completion) that resets on the 1st (UTC). You can set this per key when you create it; "unbounded" means no per-key sub-cap (the account-level total still applies).
  • Account total — an aggregate cap across all your keys. Set by an admin; visible on the dashboard. A per-key cap can't exceed the account total.

When you blow through either, requests come back as 429 budget_exceeded. Budget-cap recovery shows the pattern for handling this in code; the short version is: don't retry, the cap is sticky until the 1st.

Where things live

  • Dashboard — keys, this-month's spend per key, create / pause / revoke buttons.
  • Usage — usage chart with per-model breakdown for the current month, plus the running totals you'll need for budget planning.
  • Workbench — in-browser prompt UI; saved prompts persist across browsers.

Once you're signed in, all three pages are linked from the top nav.

Asking for more

If you need a bigger budget, an always-on warm window, or access to a model that isn't on the list — use the in-app Feedback button or email base-models@acsresearch.org. We read everything; please include your key prefix or name so we can find your account.